drm/i915: Wrap the buf trans tables into a struct

Put a wrapper struct around the buf trans tables so that
we can declare the number of entries and default HDMI entry
alongside the table.

@wrap@
identifier old =~ "^.*translations.*";
fresh identifier new = "_" ## old;
type T;
@@
<...
static const T
- old
+ new
[] = {
       ...
};
+
+ static const struct intel_ddi_buf_trans old = {
+  .entries = new,
+  .num_entries = ARRAY_SIZE(new),
+ };
...>

@@
identifier wrap.old;
@@
(
- ARRAY_SIZE(old)
+ old.num_entries
|
- old
+ old.entries
)

@@
@@
union intel_ddi_buf_trans_entry {
...
};
+
+struct intel_ddi_buf_trans {
+       const union intel_ddi_buf_trans_entry *entries;
+       u8 num_entries;
+};

v2: Handle adl-p

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210608073603.2408-6-ville.syrjala@linux.intel.com

drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h

@@ -53,6 +53,11 @@ union intel_ddi_buf_trans_entry {
 	struct tgl_dkl_phy_ddi_buf_trans dkl;
 };
 
+struct intel_ddi_buf_trans {
+	const union intel_ddi_buf_trans_entry *entries;
+	u8 num_entries;
+};
+
 bool is_hobl_buf_trans(const union intel_ddi_buf_trans_entry *table);
 
 int intel_ddi_hdmi_num_entries(struct intel_encoder *encoder,